大约有 20,000 项符合查询结果（耗时：0.0325秒） [XML]
Does Ruby have a string.startswith(“abc”) built in method?
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It's m>ca m>lled String#start_with?, not String#startswith: In Ruby, the names of boolean-ish methods end with ? and the words in method names are separated with an _. Not sure where the s went, personally, I'd prefer String#starts_wit...
Comparing arrays in JUnit assertions, concise built-in way?
...ul. We asserted the arrays were equal, they're not, and we're given an indim>ca m>tion why. From there, we m>ca m>n set a breakpoint, and examine the arrays in detail.
– Andy Thomas
Dec 1 '18 at 0:03
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Undo svn add without reverting lom>ca m>l edits
... added a bunch of files that shouldn't be in the repository. I also have lom>ca m>l edits in some files that I want to keep. Is there a simple way to just undo the svn add without reverting the lom>ca m>l edits? The main suggestion I see on Google is svn revert , which supposedly undoes the lom>ca m>l edits.
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Programmatim>ca m>lly set height on LayoutParams as density-independent pixels
...dependent pixels (dp)? It looks like the height/width, when set programmatim>ca m>lly, are in pixels and not dp.
5 Answers
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“Insert if not exists” statement in SQLite
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If you have a table m>ca m>lled memos that has two columns id and text you should be able to do like this:
INSERT INTO memos(id,text)
SELECT 5, 'text to insert'
WHERE NOT EXISTS(SELECT 1 FROM memos WHERE id = 5 AND text = 'text to insert');
If a...
dplyr: “Error in n(): function should not be m>ca m>lled directly”
...y the previous answer, you may have a conflict between plyr and dplyr. You m>ca m>n to run this command to unload the plyr package.
detach("package:plyr", unload=TRUE)
Then you m>ca m>n continue as expected.
library(dplyr)
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summarise(n = n())
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Simulate airplane mode in iPhone Simulator
...ly for NSURLConnection and its kin, but it could be more confusing if some m>ca m>lls work and some don't.
– Rob Napier
Dec 2 '09 at 14:09
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Overwrite or override
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The common used word is Override and it's not language-specific as you m>ca m>n also read from wikipedia: http://en.wikipedia.org/wiki/Method_overriding
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Deprem>ca m>ted warning for Rails 4 has_many with order
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In Rails 4, :order has been deprem>ca m>ted and needs to be replaced with lambda scope block as shown in the warning you've posted in the question. Another point to note is that this scope block needs to be passed before any other association options such as dep...
Webstorm: “m>Ca m>nnot Resolve Directory”
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I have the same problem: "m>Ca m>nnot resolve file", m>ca m>nnot resolve directory" Seems that WebStorm, phpStrom, have had this issue for a very long time, there are hundreds of treads asking the same thing, no real clear answer it seems, goes back to 2011 it...